Cut this book into 160 pieces, glue them together, and have a paper clock operated by weights that keeps perfect time and can be rewound and regulated.

If you have ever sat frozen before a stopped 400-day clock wondering what to do, this book is for you. This is the most comprehensive repair manual that describ

#1 NEW YORK TIMES BESTSELLER More than ONE MILLION copies sold A TODAY Show Read with Jenna Book Club Pick A New York Times Notable Book, and Chosen by Oprah Da

Making a piece of wood move is fun, but making it tell time is truly amazing! Inside this book, you’ll find ingenious plans for creating awesome wooden machin